<!--// -----------------------------------------//                  trim// Trim leading/trailing whitespace off string// -----------------------------------------function trim(str){  return str.replace(/^\s+|\s+$/g, '')};// -----------------------------------------//                  validateEmail// Validates for correctness of email address// -----------------------------------------function validateEmail(field)   // true if required{  var tfld = trim(field.value);  // value of field with whitespace trimmed off  var email = /^[^@]+@[^@.]+\.[^@]*\w\w$/  if (!email.test(tfld))   {    return false;  }    return true;}// -----------------------------------------//                  validateForm// Validates all fields in the form// -----------------------------------------function validateForm6(){	var frm = document.contactus			//Validate name field	if(trim(frm.name.value)=='')	{		alert('Please provide your name.');		frm.name.focus();		return false;	}		//Validate telephone field	if(trim(frm.telephone.value)=='')	{		alert('Please provide your telephone number.');		frm.telephone.focus();		return false;	}		//Validate query field	if(trim(frm.query.value)=='')	{		alert('Please provide your query.');		frm.query.focus();		return false;	}				return true;}//-->